Heighten

Webster's Dictionary of the English Language

·vt To make high; to raise higher; to Elevate.

II. Heighten ·vt To carry forward; to Advance; to Increase; to Augment; to Aggravate; to Intensify; to render more conspicuous;

— used of things, good or bad; as, to heighten beauty; to heighten a flavor or a tint.